Mechanical pencil



FIG. 1 is a front, right perspective view of a mechanical pencil showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the left side being the same in appearance as the right side;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is an explanatory front elevational view thereof showing an alternate state of use;

FIG. 8 is an explanatory right side elevational view thereof showing an alternate state of use; and,

FIG. 9 is a cross-sectional view taken along line 9—9 in FIG. 3. 

The ornamental design for a mechanical pencil, as shown and described. 